felix1111

There is a misunderstanding here about the principles of probability theory. If the odds are 100 to 1 they are 100 to 1 every time. The odds don't change with each subsequent act. You could be infected the 1st time, the 50th time, the 100th time. It just means that if you engage in the act 100 times you are likely to be infected once.
 
If you are concerned with the risk of HIV, it's very simple. Use condoms for anal sex every time. Oral sex is a risk for other STDs, but it is not a risk for HIV.

Totally agree ,,, in regards to the flip of the coin ,,, regardless of the number of spins and what the previous spins were the odds still stay at 50% ,,, of course after spinning/tossing 10 heads in a row it becomes more likely tails will come up , but in fact the odds are still 50% ,